| 2,20 → 2,41 |
|---|
| #include <stdio.h> |
| #include <limits.h> |
| #include <libc/file.h> |
| #include <stdarg.h> |
| |
| int |
| sprintf(char *str, const char *fmt, ...) |
| vsnprintf(char *str, size_t size, const char *fmt, va_list ap) |
| { |
| FILE _strbuf; |
| int len; |
| va_list va; |
| va_start(va, fmt); |
| |
| _strbuf._flag = _IOWRT|_IOSTRG; |
| _strbuf._ptr = str; |
| _strbuf._cnt = INT_MAX; |
| len = _doprnt(fmt, va, &_strbuf); |
| va_end(va); |
| _strbuf._cnt = size; |
| len = _doprnt(fmt, ap, &_strbuf); |
| *_strbuf._ptr = 0; |
| return len; |
| } |
| |
| int |
| snprintf(char *str, size_t size, const char *fmt, ...) |
| { |
| int len; |
| va_list va; |
| va_start(va, fmt); |
| len = vsnprintf(str, size, fmt, va); |
| va_end(va); |
| return len; |
| } |
| |
| int |
| sprintf(char *str, const char *fmt, ...) |
| { |
| int len; |
| va_list va; |
| va_start(va, fmt); |
| len = vsnprintf(str, INT_MAX, fmt, va); |
| va_end(va); |
| return len; |
| } |
| |